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Finding the Fourth Proportional to 475,390.56, 656,039.04 and 260,528.64

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Solution

The fourth proportional to 475,390.56, 656,039.04 and 260,528.64 is: 359,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,390.56 : 656,039.04 = 260,528.64 : x
  2. Step 2: Convert to fraction form
    475,390.56/656,039.04 = 260,528.64/x
  3. Step 3: Cross multiply
    475,390.56x = 656,039.04 × 260,528.64
  4. Step 4: Simplify right side
    475,390.56x = 170,916,958,878.11
  5. Step 5: Solve for x
    x = 170,916,958,878.11/475,390.56
  6. Step 6: Final answer
    x = 359,529.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.